Exam Question

(a) With reference to a vapour compression refrigeration plant, explain why each of the following conditions are desirable:

(i) Superheating at the compressor suction

(ii) Undercooling at the condenser outlet.

(b) Describe, with the ald of a Pressure-Enthalpy diapram, how the evaporator cooling load is affected by the conditions stated in (a)